US20030194904A1 - Smart connect electrical receptacle assembly - Google Patents
Smart connect electrical receptacle assembly Download PDFInfo
- Publication number
- US20030194904A1 US20030194904A1 US10/409,896 US40989603A US2003194904A1 US 20030194904 A1 US20030194904 A1 US 20030194904A1 US 40989603 A US40989603 A US 40989603A US 2003194904 A1 US2003194904 A1 US 2003194904A1
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- United States
- Prior art keywords
- electrical
- electrical modules
- modules
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- assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
- H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/955—Electrical connectors including electronic identifier or coding means
Definitions
- the present invention relates to an electrical distribution system, and, more particularly, to an electrical distribution system, which limits the activation of more than a predetermined number of electrical receptacles.
- Electrical codes limit the number of receptacles which can be sequentially connected. It is common for an electrical power source to be routed to an electrical receptacle and power then routed from that electrical receptacle to a subsequent electrical receptacle and this is continued for several electrical receptacles. While there is no physical limitation in wiring in this manner, there are electrical considerations such as contact resistance that may preclude the subsequent connection of electrical receptacles ad infinitum. An electrician can circumvent the electrical code by wiring too many receptacles in a sequential manner.
- a method to prevent the connection of too many electrical receptacles is to key cables and connectors on electrical receptacles to thereby preclude the attachment of too many electrical receptacles in a single circuit.
- a disadvantage of this method is that numerous unique cables and receptacle connections must be made. This reduces flexibility and increases inventory.
- the present invention provides a smart connect receptacle for use in a modular wall panel system.
- the invention comprises, in one form thereof, an electrical assembly includes a plurality of electrical modules.
- Each of the plurality of electrical modules are sequentially electrically connected to at least one other of the plurality of electrical modules.
- Each of the plurality of electrical modules include a prior module detection circuit.
- the present invention advantageously allows an installer to connect electrical receptacles in a sequential manner.
- Another advantage is that only one type of interconnecting cable is necessary.
- a further advantage of the present invention is that each of the receptacles can be identical.
- a still further advantage of the present invention is that any receptacles beyond a predetermined number will not be electrically activated.
- Yet another advantage of the present invention is that compliance with the electrical code is automatic and not circumventable by an installer.
- FIG. 1 is a perspective view of an embodiment of a modular wall panel system including a power distribution assembly having smart connect receptacles of the present invention
- FIG. 2 is a block diagram of the power distribution assembly of the modular wall panel system of FIG. 1;
- FIG. 3 is an exploded perspective view of an embodiment of the smart connect receptacles of FIGS. 1 and 2;
- FIG. 4 is a schematic diagram of a circuit in the smart connect receptacles of FIGS. 1 - 3 ;
- FIG. 5 is a schematic diagram of an embodiment of a first connector of the power distribution assembly of FIG. 2.
- FIG. 1 there is shown a modular wall panel system 10 including a modular wall panel 12 , a raceway 14 and smart connector receptacle assemblies 16 .
- Modular wall panel system 10 is utilized in a modern office space as partitioning walls in an open floor plan environment.
- raceway 14 at least partially encloses power distribution system 15 , which includes smart connect receptacle assemblies 16 , an initial power cable 18 and intermediate cables 20 .
- Initial power cable 18 is connected to a power source and provides power to smart connect receptacle assemblies 16 .
- Intermediate cables 20 are connected from one receptacle assembly 16 to another receptacle assembly 16 in a sequential manner.
- Receptacle assemblies 16 are electrical modules and include a smart circuit assembly 22 , incoming signal conductors 24 , outgoing signal conductors 26 , a line conductor 28 , a neutral conductor 30 , a ground conductor 32 , a receptacle socket assembly 34 and a receptacle back cover 36 .
- Receptacle socket assembly 34 includes a cover 38 , electrical sockets 40 having socket lugs 42 and mounting bosses 44 . Holes 46 in smart circuit assembly 22 as well as holes 48 in receptacle back cover 36 allow for the mounting of smart circuit assembly 22 in smart connect receptacle assembly 16 .
- initial power cable 18 includes a power interface connector 50 , conductors 52 and an initial smart connector assembly 54 .
- Power interface connector 50 interfaces with an electrical power source having at least a power connection, a neutral connection and a ground connection.
- Power interface connector 50 may additionally connect to multiple power, neutral and ground conductors.
- Conductors 52 transfer electrical power from power interface connector 50 to initial smart connector assembly 54 .
- Initial smart connector assembly 54 includes a line conductor 56 , a neutral conductor 58 , a ground conductor 60 and a connector circuit assembly 62 .
- Connector circuit assembly 62 includes a transformer 64 , a rectification circuit 66 , a voltage regulator 68 , a capacitor 70 , signal lines 72 and a reference ground 74 .
- Connector circuit assembly 62 provides initial signal lines 72 to be utilized by smart circuit assemblies 22 to thereby preclude the attachment of more than a predetermined number of electrical receptacles. In this example, there is a limitation of eight sequentially connected smart connect receptacle assemblies 16 .
- the first eight receptacle assemblies 16 are electrically functional, because the eight separate signal lines of signal lines 72 provide information, which is interpreted by each electrical module 16 to thereby only activate the next electrical module 16 if there are fewer than seven prior electrical modules 16 .
- Connector circuit assembly 62 provides a digital logic value or signal level by way of signal lines 72 to subsequent smart connect receptacle assemblies 16 .
- reference ground line 74 is a reference to which subsequent digital circuits determine the status of signal lines 72 .
- Signal lines 72 and reference ground 74 are small gauge wires for the transfer of electrical signals.
- line conductor 56 , neutral conductor 58 and ground conductor 60 are of appropriate size to carry power, such as for a 15 amp. circuit.
- Intermediate cables 20 include first connector 76 and second connector 78 .
- Connector 76 receives power and signal lines from a preceding smart connect receptacle assembly 16 , while connector 78 passes it on to a succeeding receptacle assembly 16 .
- Receptacles 76 and 78 may be identical, however, connectors 76 and 78 may be keyed to only allow power to be supplied to connector 76 .
- Smart circuit assembly 22 includes line conductor 80 , neutral conductor 82 , a ground conductor 84 , a modified line conductor 86 , a modified neutral conductor 88 , a DC power supply 90 , a relay 92 , a transistor 94 , an inverting circuit 96 and an OR gate 98 .
- Conductors 80 , 82 and 84 respectively, supply power, return and ground connections for sockets 40 .
- Modified line conductor 86 and modified neutral conductor 88 provide power to a subsequent smart connect receptacle assembly 16 if relay 92 is energized, which depends upon the number of preceding smart connect receptacle assemblies 16 .
- circuit assembly 22 is a prior module detection circuit 22 , detecting the number of receptacle assemblies 16 that are connected precedent to itself.
- DC power supply 90 provides DC power to smart circuit assembly 22 .
- DC power supply 90 could be replaced by a power source in initial smart connector assembly 54 with a power and return line provided therefrom to each smart connect receptacle assembly 16 .
- Incoming signal lines 24 provide digital information to OR gate 98 . It should be noted that line 1 of incoming signal conductors 24 is directed to inverter circuit 96 , where the logical value coming in on line 1 is inverted to be the logical negative thereof. The output of inverter circuit 96 is directed to line 2 of outgoing signal conductors 26 and to an input of OR gate 98 . It should also be noted that incoming lines 2 - 7 are respectively directed to lines 3 - 8 of outgoing signal conductors 26 .
- OR gate 98 If the output of OR gate 98 is a logic one or positive voltage, the base of transistor 94 is driven to cause NPN transistor 94 to conduct causing a current to flow from the collector through the emitter of transistor 94 , thereby driving an energizing coil in relay 92 .
- OR gate 98 , transistor 94 and relay 92 function as a subsequent module activation circuit causing power to be conveyed out of smart circuit assembly 22 by way of modified line conductor 86 and modified neutral conductor 88 .
- smart circuit assembly 22 does not activate any subsequent modules 16 , when the predetermined number, in this example seven previous electrical modules 16 , are detected.
- Relay 92 has two normally open contacts, one for line conductor 28 and one for neutral conductor 30 , which are then, respectively, connected to modified line conductor 86 and modified neutral conductor 88 when relay 92 is energized.
- Outgoing signal conductors 26 of each subsequent smart connect receptacle assembly 16 are one-by-one modified to be logical zero, such that when lines 2 - 8 of incoming signal conductors 24 , are logical zero and line 1 is logical one, which occurs in the eighth smart connect receptacle assembly 16 , then the inputs to OR gate 98 are all zero, causing the output of OR gate 98 to be a logic zero.
- OR gate 98 When the output of OR gate 98 is a logic zero, there is no current to drive the base of transistor 94 , which in turn leaves the coil of relay 92 unenergized, thereby leaving line conductor 86 and neutral conductor 88 unenergized for any subsequent smart connect receptacle subassembly 16 , or for that matter, for any other modules that may be attached thereto.
- the signals conveyed by incoming signal conductors 24 and outgoing signal conductors 26 may be replaced by a binary coded decimal system or other coded method to reduce the number of signal conductors needed to convey the information to subsequent smart connect receptacle assemblies 16 .
- other manners of providing information to subsequent assembly 16 may be in the form of fiber optics or a single communication line.
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Abstract
Description
- This is a non-provisional application based upon U.S. provisional patent application serial No. 60/371,311, entitled “SMART CONNECT”, filed Apr. 10, 2002.
- 1. Field of the Invention
- The present invention relates to an electrical distribution system, and, more particularly, to an electrical distribution system, which limits the activation of more than a predetermined number of electrical receptacles.
- 2. Description of the Related Art
- Electrical codes limit the number of receptacles which can be sequentially connected. It is common for an electrical power source to be routed to an electrical receptacle and power then routed from that electrical receptacle to a subsequent electrical receptacle and this is continued for several electrical receptacles. While there is no physical limitation in wiring in this manner, there are electrical considerations such as contact resistance that may preclude the subsequent connection of electrical receptacles ad infinitum. An electrician can circumvent the electrical code by wiring too many receptacles in a sequential manner.
- A method to prevent the connection of too many electrical receptacles is to key cables and connectors on electrical receptacles to thereby preclude the attachment of too many electrical receptacles in a single circuit. A disadvantage of this method is that numerous unique cables and receptacle connections must be made. This reduces flexibility and increases inventory.
- What is needed in the art is a system that will limit the number of electrical receptacles in a single power circuit without relying on unique keyed connector cable systems.
- The present invention provides a smart connect receptacle for use in a modular wall panel system.
- The invention comprises, in one form thereof, an electrical assembly includes a plurality of electrical modules. Each of the plurality of electrical modules are sequentially electrically connected to at least one other of the plurality of electrical modules. Each of the plurality of electrical modules include a prior module detection circuit.
- The present invention advantageously allows an installer to connect electrical receptacles in a sequential manner.
- Another advantage is that only one type of interconnecting cable is necessary.
- A further advantage of the present invention is that each of the receptacles can be identical.
- A still further advantage of the present invention is that any receptacles beyond a predetermined number will not be electrically activated.
- Yet another advantage of the present invention is that compliance with the electrical code is automatic and not circumventable by an installer.
- The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention will be better understood by reference to the following description of an embodiment of the invention taken in conjunction with the accompanying drawings, wherein:
- FIG. 1 is a perspective view of an embodiment of a modular wall panel system including a power distribution assembly having smart connect receptacles of the present invention;
- FIG. 2 is a block diagram of the power distribution assembly of the modular wall panel system of FIG. 1;
- FIG. 3 is an exploded perspective view of an embodiment of the smart connect receptacles of FIGS. 1 and 2;
- FIG. 4 is a schematic diagram of a circuit in the smart connect receptacles of FIGS.1-3; and
- FIG. 5 is a schematic diagram of an embodiment of a first connector of the power distribution assembly of FIG. 2.
- Corresponding reference characters indicate corresponding parts throughout the several views. The exemplification set out herein illustrates one preferred embodiment of the invention, in one form, and such exemplification is not to be construed as limiting the scope of the invention in any manner.
- Referring now to the drawings, and more particularly to FIG. 1, there is shown a modular
wall panel system 10 including amodular wall panel 12, araceway 14 and smartconnector receptacle assemblies 16. Modularwall panel system 10 is utilized in a modern office space as partitioning walls in an open floor plan environment. - Now, additionally referring to FIGS.2-4,
raceway 14 at least partially enclosespower distribution system 15, which includes smartconnect receptacle assemblies 16, an initial power cable 18 andintermediate cables 20. Initial power cable 18 is connected to a power source and provides power to smart connectreceptacle assemblies 16.Intermediate cables 20 are connected from onereceptacle assembly 16 to anotherreceptacle assembly 16 in a sequential manner. -
Receptacle assemblies 16 are electrical modules and include asmart circuit assembly 22,incoming signal conductors 24,outgoing signal conductors 26, aline conductor 28, aneutral conductor 30, aground conductor 32, areceptacle socket assembly 34 and areceptacle back cover 36.Receptacle socket assembly 34 includes acover 38, electrical sockets 40 havingsocket lugs 42 and mountingbosses 44.Holes 46 insmart circuit assembly 22 as well asholes 48 inreceptacle back cover 36 allow for the mounting ofsmart circuit assembly 22 in smartconnect receptacle assembly 16. - Now additionally referring to FIG. 5, initial power cable18 includes a
power interface connector 50,conductors 52 and an initialsmart connector assembly 54.Power interface connector 50 interfaces with an electrical power source having at least a power connection, a neutral connection and a ground connection.Power interface connector 50 may additionally connect to multiple power, neutral and ground conductors.Conductors 52 transfer electrical power frompower interface connector 50 to initialsmart connector assembly 54. - Initial
smart connector assembly 54 includes aline conductor 56, aneutral conductor 58, aground conductor 60 and aconnector circuit assembly 62.Connector circuit assembly 62 includes atransformer 64, arectification circuit 66, avoltage regulator 68, acapacitor 70,signal lines 72 and areference ground 74.Connector circuit assembly 62 providesinitial signal lines 72 to be utilized bysmart circuit assemblies 22 to thereby preclude the attachment of more than a predetermined number of electrical receptacles. In this example, there is a limitation of eight sequentially connected smartconnect receptacle assemblies 16. The first eightreceptacle assemblies 16 are electrically functional, because the eight separate signal lines ofsignal lines 72 provide information, which is interpreted by eachelectrical module 16 to thereby only activate the nextelectrical module 16 if there are fewer than seven priorelectrical modules 16.Connector circuit assembly 62 provides a digital logic value or signal level by way ofsignal lines 72 to subsequent smartconnect receptacle assemblies 16. Also,reference ground line 74 is a reference to which subsequent digital circuits determine the status ofsignal lines 72.Signal lines 72 andreference ground 74 are small gauge wires for the transfer of electrical signals. In contrast,line conductor 56,neutral conductor 58 andground conductor 60 are of appropriate size to carry power, such as for a 15 amp. circuit. -
Intermediate cables 20 includefirst connector 76 andsecond connector 78.Connector 76 receives power and signal lines from a preceding smartconnect receptacle assembly 16, whileconnector 78 passes it on to a succeedingreceptacle assembly 16.Receptacles connectors connector 76. -
Smart circuit assembly 22 includesline conductor 80,neutral conductor 82, aground conductor 84, amodified line conductor 86, a modifiedneutral conductor 88, aDC power supply 90, arelay 92, atransistor 94, an invertingcircuit 96 and anOR gate 98.Conductors Modified line conductor 86 and modifiedneutral conductor 88 provide power to a subsequent smartconnect receptacle assembly 16 ifrelay 92 is energized, which depends upon the number of preceding smartconnect receptacle assemblies 16. If, as in this example, a subsequent smartconnect receptacle assembly 16 is the ninth in the power circuit, thenline conductor 86 andneutral conductor 88 are not energized in the previous (the eighth)receptacle assembly 16. In thisway circuit assembly 22 is a priormodule detection circuit 22, detecting the number ofreceptacle assemblies 16 that are connected precedent to itself. -
DC power supply 90 provides DC power tosmart circuit assembly 22. Alternatively,DC power supply 90 could be replaced by a power source in initialsmart connector assembly 54 with a power and return line provided therefrom to each smartconnect receptacle assembly 16. -
Incoming signal lines 24 provide digital information to ORgate 98. It should be noted thatline 1 ofincoming signal conductors 24 is directed toinverter circuit 96, where the logical value coming in online 1 is inverted to be the logical negative thereof. The output ofinverter circuit 96 is directed toline 2 ofoutgoing signal conductors 26 and to an input ofOR gate 98. It should also be noted that incoming lines 2-7 are respectively directed to lines 3-8 ofoutgoing signal conductors 26. If the output ofOR gate 98 is a logic one or positive voltage, the base oftransistor 94 is driven to causeNPN transistor 94 to conduct causing a current to flow from the collector through the emitter oftransistor 94, thereby driving an energizing coil inrelay 92. ORgate 98,transistor 94 andrelay 92 function as a subsequent module activation circuit causing power to be conveyed out ofsmart circuit assembly 22 by way of modifiedline conductor 86 and modifiedneutral conductor 88. Converselysmart circuit assembly 22 does not activate anysubsequent modules 16, when the predetermined number, in this example seven previouselectrical modules 16, are detected.Relay 92 has two normally open contacts, one forline conductor 28 and one forneutral conductor 30, which are then, respectively, connected to modifiedline conductor 86 and modifiedneutral conductor 88 whenrelay 92 is energized. -
Outgoing signal conductors 26 of each subsequent smartconnect receptacle assembly 16 are one-by-one modified to be logical zero, such that when lines 2-8 ofincoming signal conductors 24, are logical zero andline 1 is logical one, which occurs in the eighth smartconnect receptacle assembly 16, then the inputs to ORgate 98 are all zero, causing the output ofOR gate 98 to be a logic zero. When the output ofOR gate 98 is a logic zero, there is no current to drive the base oftransistor 94, which in turn leaves the coil ofrelay 92 unenergized, thereby leavingline conductor 86 andneutral conductor 88 unenergized for any subsequent smartconnect receptacle subassembly 16, or for that matter, for any other modules that may be attached thereto. - Alternatively, the signals conveyed by
incoming signal conductors 24 andoutgoing signal conductors 26 may be replaced by a binary coded decimal system or other coded method to reduce the number of signal conductors needed to convey the information to subsequent smartconnect receptacle assemblies 16. In addition, other manners of providing information tosubsequent assembly 16 may be in the form of fiber optics or a single communication line. - While this invention has been described as having a preferred design, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.
Claims (23)
Priority Applications (1)
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US10/409,896 US6857896B2 (en) | 2002-04-10 | 2003-04-09 | Smart connect electrical receptacle assembly |
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US37131102P | 2002-04-10 | 2002-04-10 | |
US10/409,896 US6857896B2 (en) | 2002-04-10 | 2003-04-09 | Smart connect electrical receptacle assembly |
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US20030194904A1 true US20030194904A1 (en) | 2003-10-16 |
US6857896B2 US6857896B2 (en) | 2005-02-22 |
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Cited By (15)
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US20070077799A1 (en) * | 2005-10-05 | 2007-04-05 | Laukhuf Gregg E | Modular wall panel electrical assembly |
US20070105415A1 (en) * | 2005-11-07 | 2007-05-10 | Yucheng Jin | Power connector with automatic power control |
US9213327B1 (en) * | 2014-07-15 | 2015-12-15 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9304590B2 (en) | 2014-08-27 | 2016-04-05 | Leen, Inc. | Intuitive thermal user interface |
US9324227B2 (en) | 2013-07-16 | 2016-04-26 | Leeo, Inc. | Electronic device with environmental monitoring |
US9372477B2 (en) | 2014-07-15 | 2016-06-21 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9445451B2 (en) | 2014-10-20 | 2016-09-13 | Leeo, Inc. | Communicating arbitrary attributes using a predefined characteristic |
US9778235B2 (en) | 2013-07-17 | 2017-10-03 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9801013B2 (en) | 2015-11-06 | 2017-10-24 | Leeo, Inc. | Electronic-device association based on location duration |
US9865016B2 (en) | 2014-09-08 | 2018-01-09 | Leeo, Inc. | Constrained environmental monitoring based on data privileges |
US10026304B2 (en) | 2014-10-20 | 2018-07-17 | Leeo, Inc. | Calibrating an environmental monitoring device |
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US10186900B2 (en) | 2017-02-24 | 2019-01-22 | Ergotron, Inc. | Techniques for controlling A/C power distribution in powered furniture |
US20190288495A1 (en) * | 2018-03-14 | 2019-09-19 | Electronic Theatre Controls, Inc. | Theatre raceway assembly for electrical and communication distribution |
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US9324227B2 (en) | 2013-07-16 | 2016-04-26 | Leeo, Inc. | Electronic device with environmental monitoring |
US9778235B2 (en) | 2013-07-17 | 2017-10-03 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9213327B1 (en) * | 2014-07-15 | 2015-12-15 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
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